Gas burner



A. B. SHARP GAS BURNER Dec. 29, 1925 1,567,622

Filed`Feb. 24, 1925 I I 10U Patented Dec. 29, 1925.

-UNlTED STATES PATENT OFFICE.

ALEXANDER B. SHARP, or s'rEUBENvILLE, omo,

ASSIGNOR TO TEE OHIO FOUNDRY & MANUFACTURING CO., OF STEUBENVILLE,OHIO', A CORPORATION OF OHIO. I

GAS BURNER.

Application led February 24, 1925. Serial No. y11,103.

To all whom it may concern.' v

Be it known that I, ALEXANDER B. SHARP, a citizen of the United States,and a resident of Steubenville, in the county of Jefferson and State ofOhio, have'invented a new and useful Improvement in Gas Burners; and ldo hereby declare the following to be a full, clear, and eXactdescription thereof.

My invention relates to gas burners, and particularly to burners havinga plurality of burner tips or openings.

One object of my invention is. to provide means whereby each tip of aburner is supplied with the proper amount of fuel, and whereby the fuelso supplied is prevented. from becoming unduly heated before passingthrough the'burner grids or tips.

Another object of myinvention is to provide a burner grid possessingimprove functional and structuralk characteristics.

Still another object of my invention is to simplify and improvegenerally the structure and. operation of gas burners'.

One form which my invention may take is shown in the accompanyingdrawing wherein Fig. 1 is a perspective view of a burner, constructed inaccordance with my invention; Fig. 2 is a view, partially inf section,and partially in elevation, on an enlarged scale, of a portion of theburner of Fig. 1; Fig. 3 is a view taken on the line 3 3 of Fig. 2; Fig.4 is a view of one of the holding members for the bars that enter intothe construction of the burner grids; Fig. 5 is a perspective view .ofone of said bars; Fig. 6 is a view showing the bars and holders as inFigs. 4 and 5, assembled into a unitary structure; Fig. 7 is a crosssectional view of the structure of Fig. 6, and Fig. 8 is a view similarto Fig. 3, but, showing the grid bars extended beyond the orifice walls.

The burner comprises an inlet 8 which may be of somewhat the usual formand a chamber 9 into which the inlet leads. The chamber 9 is providedwith two channel eX- tensions 10 that are partially circular in withperforated extensions 13 by means of` which it may be mounted in astove. In the case of a radiant heater, the radiants would be supportedabove the orifices 12. The chamber portions 10 gradually decrease incross sectional area toward their outer ends so that the necessarypressure of fuel therein is maintained to effect even distribution ofsuch fuel to thev various orifices. The chamber `portions 10 haveconcentric vanes preferably formed integrally therewith. These vanes maybe of variousv forms, and serve to absorb heat from the fuel passingthrough the burner and to dissipate such heat by reason of theirexposure to the outside air. Overheating of the burner is therebyprevented and consequent tendency toward backring reduced.

The vanes 14 increase in surface area tod ward the outer ends of theburner portions 10, as shown in Fig. 2. The desirability of thisarrangement arises by reason of the fact that as the gas flows towardthe orifices at the ends of the burners its temperature increases, andprovision must therefore be made to effect a greater absorption of heattherefrom. j

The burner units 12 are composed ofy bars 'i 15 supported in crimpedholders 16 preferably o f ductile metal. The manner in which the metalis crimped for the reception of bars is shown more clearly in Fig. 4. Itwill be seen that as the bars are all inserted from the bottom side ofthe member 16 their-upper and lower edges will be in proper horizontalalignment. That is, each bar will be in alignment with the adjacentbars. Also that the bends ofv the crimped member' at either side thereofare in alignment so that a .comparatively smooth surface results. Eachbar is separated from the next bar by a double thickness of the stripmaterial thus providing aifnple space between the bars for passage o as.

rfter the units have been assembled as shown in Fig. 6 they are driveninto the rectangular opening 11 until they occupy the position lshownmore clearly in Figs. 1 and 7. The holders 16 are disposed immediatelyabove the edges 17 of the side walls of the chamber 9. so that theypresent no obstruction to the ow of gas through the openings. The units12` are pre erably made of such thicknessthat they willkl be 'canreadily be made and the body of the burner continued in use even vthoughit becomes distorted through acticnof the heat and the like, because ofthe adaptability of the units to openings of various sizes andycontours. n

I claim as my invention:

1.l A gas burner comprising an elongated chamberA provided with a fuelinlet and with a plurality of openings, and burner grids adapted tobevmounted in said openings, each of said grids comprisin a unitcomposed of bars and holding str1 s that are of accordion or plaitedform, t e bars being disposed between the folds of said strips.

2. A gas burner comprising an elongated chamber provided With a fuelinlet and with a plurality of openings, and burner grids adapted to bemounted in said openings, each of said grids lcomprisingfa unit composedof bars and holding strips that are of accordion or plaited form, thebars being disposed between the folds of said strips,

and grid vunits having close fitting engageof bars mounted edgewise andldisposed in side by side relation, and held in assembled position bystrips bent upon themselves a plurality of times to form folds, each bar.lying within a fold.

' 4. A burner grid comprising a plurality of bars mounted edgewise anddisposed in side by side relation, and held in assembled position bystrips bent upon themselves a plurality of times to form folds, each barlying within a fold and only alternate folds containing a bar, wherebyAeach bar is separated from the adjacent bar by a double thickness of thestrip material.

5. A burner comprising a plurality 'of bars mounted edgewise anddisposed in sideby-side relation, and held in assembled position bystrips bent upon themselves a pluralit of times to form folds, each barlying within a fold and the strips being disposed intermediate the midand end portions of the bars.

6. A burner comprising a plurality of bars mounted edgewise and disposedin side by side relation, and held in assembled position by strips bentupon themselves a plurality of times, each bar lying within a fold andthe folds being so bent that the upper edges of the bars are in relativehorizontal alignment.

In testimony whereof I, the sai-d ALEX- ANDER B. SHARP, have hereuntoset my hand.

ALEXANDER B. SHARP.

